We do not recommend vacuuming or washing the Pre-Filter or PECO-Filter for your Molekule air purifiers. Vacuuming can release and re-introduce pollutants back into your air, while washing the filters could potentially cause mold to grow if the filters are not dried fully.
The only way to keep your filters fresh is to replace them regularly. For the Molekule Air, we recommend replacing the Pre-Filter every 3 months and the PECO-Filter every 6 months. For the Molekule Air Mini, we recommend replacing the PECO-Filter every 6 months.